Earlier quoted context omitted.
If you want to feel some dissonance about this, you might note that this is the exact language the CDC uses for things like secondhand smoke -- "There is no risk-free level of exposure to secondhand smoke" -- which everybody nods along to and accepts without much scrutiny. Source: https://www.cdc.gov/tobacco/data_statistics/fact_sheets/seco... Meanwhile, when it's something like, say, cosmic radiation exposure from c…
The CDC has been unfortunately hopelessly politicized. It happened long before the pandemic. OTOH, I would make the differentiating point that air travel has positive benefits to society and costs and one has to weigh those against each other. You can’t make the blanket statement “earth would be better off if air travel went away completely.” It’s hard to find any benefit to smoking, first hand or second, so it’s eas…
The same is true about recreational travel. People expose themselves to high levels of radiation and travel risk purely for recreational purposes. Smokers inhale carcinogenic substances for recreational purposes.